Well-drilling apparatus.



v M. REPP. WELL DRILLING APPARATUS. APPLICATION FILED JAN. 24, 1911.

Patented Feb. 11, 1913.

WITNESSES: I

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arena castes MAT'YAS -REPP,,0IE NEWARK, NEW J WELL-DRILLING .APPARATUS.

.Specifieation of Letters Patent.

Patented Feb. 1%, i13..

Application filed January 24, 1911. Serial No. 604%,333.

To all whom it may concern Be it known that I, MATYAs REPP, a citi zen of the Unitedv States, residing at Newark, in the county of Essex and State. of New Jersey, have invented certain new and useful Improvements in Veil-Drilling Ap-' ground for wells and the like, and is one in which an outer pipe is sunk into the ground, being preceded by a drill which operates beyond the end of the outer pipe, and a means. for suspending the drill and also for operating it so that the drill precedes the outer pipe and the descent. of the outer.

pipe is therefore made easy.

The drill is of a: kind that is adapted to .be rotated,.and when rotated in one direction, there are means on the drill, such as Wings, for extending the'drill' to the width of the outer pipe so as to drill a hole or a bore the size of the outer pipe, said drill also being adapted to be contracted, when rotated in the other direction, so as to be withdrawn with the suspending means from the outer pipe. 4 v

The suspending "means is preferably an inner pipe which acts to conduct a liquid, such-as water, down through the inner pipe and wash the material from around the drill and make the workof the drill easy, the drill' being attached tothe inner pipe in a wayso as to'not closethe inner pipe, the outer plpe ,acting'as an outlet pipe andconducting the water'and the material from the bore.

. The outer pipe is also designedto be forced into the ground, andI provide means for forcingthe outer pipe downward as the drill and the liquid make the bore deeper. I also provide a feed. pipe, couplingwith the inner pipe, to conduct the liquid to the inner pipe, and I also rovide a joint between the feed pipe an the innerpi'pe'sQ" that the inner pipe can be rotated freely. I, also provide suitable means for raising and.

lowering'the inner pipe,

force down a. clamping I The invention is illustrated in the accompanying drawing, in which-f F gure 1 is an elevation of the device with its pipes broken. away and showing the ground in section. Fig. 2 is a top view of the drill, and. Fig. 3 is a side view of the drill. i In my invention I employ an outer pipe 10 which is the pipe that. is driven into the ground inside the bore, and which can he removed afterthe well is complete; or it can be left in the grou'nd, as desired. The usual planis to leave it in the ground. To force this pipe downward I employ a forcing means which comprisesa beam or a plate '11 which is embedded in thegroundto make it solid, and vertical screw-threaded bolts 12' project therefrom substantially parallel with the pipe. Nuts 13 are put on the bolts 12 to act as stops, as will he hereinafter described. Forcing nuts 1d are also placed on fit! the boltsand are adapted to be rotated to v means co-acting with tgrips the pipe when it is forced downward, and slips on the pipe when it is elevated so that by successive raisings and lowerings of the clamping plate 15 the. pipe can be forced down into the ground. Nearthe' top cf the outlet pipe 10 I place a discharge'pipe 16 which can be used to conduct liquid which plate 15 which ha I e pipe 10 whereby it is used in. the apparatus in a mannertc be hereinafter described.

Acting as a suspending means'for a drill is an inner 'pipe 17 which is placed within the outer pipe, and on the bottom end of which is fastened a drill which consists of.

a body portion 18' which is prezera bly flat and has a reduced top 18 at its top edge, the

a=tWo edges of. the reduced top '18 being screwthreaded, as shown in Fig. 3, so that it threaded bottomfend of he inner pipe 17 to forma partition f.) divide the water coming down -through the pipe 17 and notinterfere with the eiiiciency of the stream, allowing a full escape of the Water from the pipe.

- The bottom of the drill ismade intoa tapered or pointed portion 19 and it can be provided on each side-with a groove 20, to form-a sharpened edge-whereby the drill can act as an auger. Onopposite sides of the is adapted to be screwed intc'the screw-" body portion 18, and on opposite sides of the longitudinal axis of the drill, I placejthe lugs 21 as will be seen from 2. Be;

tween each of the pairs of lugs 21 is arranged a wing 22, which wings, by thus being-placed to one side of the center of the fdrilL can be folded against the body por- ,tlOnas shown in dotted outline in Fig. 2,

"i -whereby they can be withdrawn'with the it is desired to withdraw the drill. When pipe 17 through the outer pipe '10, when the drill is rotated in the opposite direction the pointed or dhamfered portion 23 of each .wing 22 swings about until its back edge enga es the body portion asshown in Fig. 2, an the ends of the wings make or scrape a bore big enough around to receive the outer pipe 10, and thus make the descent of the pipe 10 comparatively easy. The water coming down on both sides of the drill keeps thedirt away from the sides of the body portion 18 so that it does not interfere with the easy folding of the wings 22. A shoulder 24, between the body portion and'the reduced top of the drill, limits the entrance of the drill into the inner pipe and acts as a shoulder against which the bottom of the inner pipe is forced when the drill is rotated to operate it to spread the ings 22.

A conducting pipe-25, which is preferably a flexible hose, conducts liquid, such as water, under pressure to the feed pipe26. A union or similar joint 27connects the feed pipe 26 and the inner pipe 17 in such a manner as to provide for an easy rotation of the pipe 17in either direction without rotating the feed pipe. It will be understood that a suitablewrench or lever can be used to clasp the inner pipe 17 to rotate it.

Means for suspending and for varying the elevation of the feed pipe, and consequently the inner pipe, is provided, by means of a rope or strand 28 running over a suitable pulley 29 which is' suspended on the'trlpod 30, but it will be understood, however, that any suitable support can be substituted for the tripod 30.

When thedevice is used the liquid under.

pressure passing down through the inner pipe 17 emerges from its end as shown in Fig. 3, this end not being closed, and washes away and assists in dislodging the material which is penetrated by the drill, and the water and the material that is washed out pass up between the outer pipe and the inner pipe and pass out through the discharge pipe 16.

Having thus described my invention, what I claim is 1. A boring apparatus comprising an -outer pipe, an inner pipe with a screwthreaded end, a drill flat on both sides from top-to bottom and having a reduced top to form a shoulder, the edges of the top being screw-threaded and entering the screwthreaded end. of the inner pipe, the sides of the top and the inside of the inner pipe forming the walls of ducts for directing water descending through the pipe to the end of the drill, lugs arranged on the fiatsides of the drill and on opposite sides of its longitudinal axis, and wings swinging between lugs, the

wings being adapted to project beyond the edge of the drill at the edge nearest their the bottom end of the drill being po1nted,'

lugs projecting" from the flat sides of the drill, the lugs on the opposite sides of the drill being arranged on opposite sides of the longitudinal axis of the drill, and wings mounted on the opposite sides of the drill between the lugs each wing being so propor-' tio'ned that it fits within the limits of the drill when swung toward the edge farthest fromits pivotal point and projecting from .the edge of the drill when'swung toward the edge nearest its'pivotal point.

In testimony, that I claim the foregoing, I have hereunto set my hand this 9th day of January, 1911.

MATYAS REPP.

' Witnesses: I WM. H. OAMFIELD, E. A. PELL. 

